linux.conf.au
Optimization

I know *you* benchmark and read the asm during optimization, but it's
quite clear that others are so scared of "bloat" criticism that they
optimize without measuring the straightforward case *first*.

Remember, to be cool:
 	1) Use bitops and memory barriers not spinlocks,
 	2) Use inlines everywhere,
 	3) Use likely()/unlikely() on every branch
 	4) Use prefetch() everywhere,
 	5) Use gotos to minimize the path length
 	6) __set_current_state() not set_current_state()
 	7) Pass in current as a function param

Rusty.
--
  Anyone who quotes me in their sig is an idiot. -- Rusty Russell.